Town Car V8-4.6L SOHC VIN W (1999)
Drive/Propeller Shaft: Testing and Inspection
Driveshaft Vibrates
1. Road test the vehicle to determine the critical vibration points. Note the road speed, the engine RPM, and the shift lever positions at which the
vibration occurs.
2. Stop the vehicle, place the transmission lever in neutral and run the engine through the critical speed ranges determined in Step 1.
3. If no vibration is felt, balance the driveshaft.
